US4693728A - Hydrocolloid blend for controlled release of calcium ions - Google Patents

Hydrocolloid blend for controlled release of calcium ions Download PDF

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Publication number
US4693728A
US4693728A US06/770,114 US77011485A US4693728A US 4693728 A US4693728 A US 4693728A US 77011485 A US77011485 A US 77011485A US 4693728 A US4693728 A US 4693728A
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guar
salt
hydrocolloid
blend
alginate
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US06/770,114
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Kenneth Clare
William Gibson
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Solutia Inc
Moss Inc
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Kelco International Ltd
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B65/00—Compositions containing mordants
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/001—Special chemical aspects of printing textile materials
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/10—Organic substances
    • A23K20/163—Sugars; Polysaccharides
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K50/00—Feeding-stuffs specially adapted for particular animals
    • A23K50/40—Feeding-stuffs specially adapted for particular animals for carnivorous animals, e.g. cats or dogs
    • A23K50/48—Moist feed
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L29/00—Foods or foodstuffs containing additives; Preparation or treatment thereof
    • A23L29/20—Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents
    • A23L29/206—Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of vegetable origin
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L9/00—Puddings; Cream substitutes; Preparation or treatment thereof
    • A23L9/10—Puddings; Dry powder puddings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
    • C08L5/04—Alginic acid; Derivatives thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/46—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing natural macromolecular substances or derivatives thereof
    • D06P1/48—Derivatives of carbohydrates

Definitions

  • the preferred hydrocolloid is guar.
  • Guar is a commercially available gum derived from the seed of the guar plant, Cyanaposis tetragonolobus.
  • other hydrocolloids usable in this invention include guar derivatives such as oxidized guar, carboxymethyl guar, de-polymerized guar, and hydroxyalkyl guar such as hydroxyethyl- and hydroxypropyl-guar, polyvinylalcohol, carboxymethyl cellulose (CMC), xanthan gum, cold water soluble locust bean gum, cold water soluble starch, and starch derivatives such as hydroxyethylated and hydroxypropylated starch.
  • CMC carboxymethyl cellulose
  • xanthan gum cold water soluble locust bean gum
  • cold water soluble starch cold water soluble starch
  • starch derivatives such as hydroxyethylated and hydroxypropylated starch.
  • the alginates to be used are the soluble salts of alginic acid.
  • Alginic acid derived primarily from kelp, is a commercially available product, as are the alginates.
  • Especially preferred alginates are the sodium, potassium, and ammonium salts.
  • the di-valent salts which can be used in this invention are preferably those of calcium, barium, and strontium.
  • the salts include a range of different solubilities from the least soluble like calcium citrate, tartrate, sulphate, and phosphate to the very soluble like calcium chloride.
  • the salts include the acetate, bromide, carbonate, fluoride, fumarate, d-gluconate, glycerophosphate, hydroxide, iodide, lactate, di-malate, d-malate, maleate, malonate, nitrate, nitrite, oleate, primary-, secondary-, and tertiary-orthophosphate, proprionate, salicylate, and d-tartrate salts.
  • the tri-valent salts such as those of aluminium, may also be used.
  • the blends of the hydrocolloids and di-valent salts are prepared by dry mixing the two ingredients and then slowly adding water under agitation to form a paste or dough. If insufficient water is used (as evidenced by a lack of pasting), the hydrocolloid is not properly hydrated and an unacceptable product is produced. If an excess of water is used (such that the hydrocolloid is mostly dissolved) an acceptable product can be produced but the drying step becomes time-consuming and expensive.
  • the ratio of di-valent salt to hydrocolloid ranges from 10:1 to 1:20 (based on total dry weights). Preferably the range is 5:1 to 1:5.
  • hydrocolloid/di-valent salt blends are usable wherever it is desirable to controllably gel aqueous alginate solutions. Examples of such applications include gelled foods such as pet foods, sauces, gravies, bakery fillings, and structured foods such as structured pimento strips for olives. As stated above, there is a range of usable hydrocolloid:salt ratios. Likewise, there is a variety of specific salts, with varying solubility rates. The combination of these will determine the rate of viscosity build-up, which is dependent on the needs of the individual practitioner.
  • This blend is especially useful in alginate dye printing systems.
  • the combination of algins and calcium salts has been disclosed in U.S. Pat. No. 4,222,740 as a means of forming dye resist areas on textiles.
  • gelled regions are formed by separately applying a gelable (alginate) composition and a gelling (calcium) agent composition to a textile and then over-dyeing the material, the gelled regions serving as dye resist areas.
  • U.K. No. 8300635 (DE No. 3300705 Al) teaches that when very low levels of a gelling agent are used to pretreat a substrate followed by printing with an alginate-containing print paste, the dye usage for equal color yield is reduced, accompanied by improved print definition.
  • a mixed divvalent/monovalent (such as calcium/sodium) salt of alginic acid in the print paste effects a reduction in dye usage for equivalent color yield when compared to a print paste using sodium alginate or other conventional thickener.
  • the reduction in dye usage is accomplished without the necessity of pretreating the substrate.
  • the use of the mixed calcium/sodium alginate advantageously eliminates one of the process steps required by U.S. Pat. No. 4,222,740 and U.K. No. 8300635 while producing a savings in dye usage.
  • the calcium (i.e., divalent ion) can conveniently be provided by the hydrocolloid/salt blends of this invention.
  • This invention therefore, comprises a mixture of blend of hydrocolloid and salt as hereinbefore described and a soluble alginate, said mixture being especially useful in print paste compositions.
  • the specific amount and type of alginate used in any particular application will, of course, be dependent on the other materials in the print paste, e.g., oxidizing agents, buffers, etc. These can be determined by the individual practitioner depending on his particular formulation. However, usage levels of the mixture of blend and alginate in the range 10 to 90% by weight are recommended; preferably 40 to 60%.
  • the viscosity of the print pastes should be 5,000 to 30,000 cP (RVT or RVF, Brookfield Viscometer at 20 rpm, spindle 6, 20° C.) immediately before printing, preferably between 12,000-18,000 cP.
  • thickening agents such as guar, carboxymethyl guar, de-polymerized guar, locust bean gum, CMC, suitable synthetic polymers, cellulose derivatives such as sodium-carboxymethyl cellulose, and starch derivatives such as starch ether or combinations of said agents may be included to provide some of the viscosity and flow characteristics.
  • the di-valent ion level is defined as the amount theoretically necessary to convert 16-60% of the soluble alginate, preferably 25-50%, to the desired mixed alginate salt.
  • the print pastes of this invention are those prepared using pigments or dyes such as disperse dyes, reactive dyes, combinations of disperse and reactive dyes, and acid dyes, i.e., all anionic or non-ionic dyes but not cationic dyes.
  • Reactive dyes are difficult to use because fixation, as with 1.5% sodium carbonate, is deleterious to the Ca ++ /Na + ratio in the alginate.
  • the term "dye” is intended to also include “pigment”.
  • the invention is most effective with disperse dyes.
  • these print pastes comprise a variety of well known compounds such as buffers, oxidizing agents, etc. The preparation of such pastes is known in the art.
  • the substrates to be treated include, for example, polyesters, cellulosics, cottons, blends of these such as polyester/cottons, nylons, and polyamides.
  • the substrates can be any material which can be printed with the appropriate dyes.
  • the print paste composition can be applied by any conventional printing or dye method such as flat or rotary screen printing, block or raised relief printing, jet printing, stencil printing, engraved cylinder printing, Tak dying, Kuster dying, dip squeeze application, or hand application.
  • the print paste pick-up can be 25% less when compared to pastes using conventional thickeners.
  • the dye actually consumed can be reduced by up to 15-25% typically but taking into account shade strength and different dye colors, the range of dye reductions falls within 5-40%.
  • the substrate is treated as necessary to fix any dyes, then washed, dried and otherwise treated by conventional methods to produce the desired end product.
  • Example 1 125 Kg guar and 67.3 kg of calcium citrate were mixed in a paddle-type dough mixer for five minutes. 154 Kg water were added over 5-10 minutes and mixing continued for a further 30 minutes. The mixer was stopped and a further 125 kg guar added. Mixing resumed for 3-4 minutes. Then the dough was crumbled, dried, milled, and classified as in Example 1.
  • the dye was fixed on the printed material by high temperature (H.T.) steam at 175° C. followed by: a wash procedure consisting of:
  • Polyester knitted fabric was printed with two print pastes constituted as follows:
  • the dye was then fixed and washed.
  • the prints showed equal color intensity, although 20% less dye was used in the test recipe.
  • the thickener was prepared by dry mixing the following ingredients:
  • the calcium content of the thickener was 5%, based on the amount of sodium alginate.
  • Polyester knitted fabric was printed with two print pastes constituted as follows:
  • the dye was then fixed and washed.
  • the prints showed equal color intensity although 20 percent less dye was used in the test recipe.
  • the thickener was the same as in Example 3.
  • Polyester knitted fabric was printed with two print pastes constituted as follows:
  • the dye was then fixed and washed.
  • the colour intensity on the prints corresponded to a dye saving of 20% when the test recipe was used.
  • the amount of alginate (Manucol DH) in the test recipe was 1.2% vs. 3.2% in the conventional recipe.
  • the thickener was the same as in Example 3.
  • Example 3 Following the procedure of Example 1 but using carboxymethyl cellulose instead of guar, a blend was prepared which was then used to prepare a 34/38/28 thickener as in Example 3.
  • Polyester knitted fabric was printed with two print pastes constituted as follows:
  • the dye was then fixed and washed.
  • the print showed equal colour intensity although 13% less dye was used in the test recipe.
  • Polyester knitted fabric was printed with two print pastes constituted as follows:
  • the dye was then fixed and washed.
  • the colour intensity on the print correspondend to a dye saving of 25%.
  • the thickener was prepared by dry mixing the following ingredients:
  • Knitted polyester was printed with two print pastes constituted as follows:
  • the dye was then fixed and washed.
  • the prints showed equal color intensity although 30% less dye was used in the test recipe.
  • the thickener was the same as in Example 3.
  • the following table demonstrates the improved solubility of alginates in hard water when mixed with the hydrocolloid/salt blends of this invention as compared to the solubility of alginates when merely mixed with the same salts.
  • the first two samples are dry blends of sodium alginate and calcium citrate (sufficient to give 45% calcium conversion).
  • the viscosity readings are actual.
  • the third sample was of the same composition as the thickener in Example 3.
  • the thickener was of similar composition to that of Example 3 except that the hydrocolloid/salt blend was 74% xanthan gum and 26% calcium citrate.4H 2 O.
  • the viscosity readings shown for samples 3 and 4 were obtained from a plot of viscosity vs. water hardness.
  • a gelled pet food was prepared using as the thickener sodium alginate and a hydrocolloid/salt blend of this invention comprising guar and calcium sulfate.
  • the composition of the pet food was:
  • a custard was prepared of the following compositions:
  • the gel strength of the custard was 117 gm at 30 mins and 332 gm at 18 hr, measured on a Stevens LFRA Texture Analyser.
  • Hydrocolloid/salt blends in the ratios 14.3:85.7 and 85.7:14.3 were prepared following the procedure of Example 1. These blends were mixed with sodium alginate to form thickeners, which were dissolved in water of varying hardness. The following solubility data were obtained:

Abstract

Hydrocolloid/salt blends are prepared which controllably release ions into solution. The blends are especially useful in alginate print paste compositions.

Description

It is well known that the introduction of di-valent ions into soluble alginate solutions rapidly causes gelation through the formation of mixed alginate salts. Where it is desirable to control the speed of this gelation, various methods have been proposed to delay the rate of release of the divalent ions. An example of this has been the use of a sparingly soluble salt, e.g., calcium citrate, in combination with the soluble alginate, e.g., sodium alginate. The calcium ions are released over time and thus complete gelation is not instantaneous.
It has now been found that if the gelling salt is first mixed with certain hydrocolloids prior to incorporation into the soluble alginate solution, there is a more uniform release of di-valent cation. This minimizes localized gelling and thus allows lower concentrations of alginate to be used to generate a given viscosity. This controlled release of ion also minimizes the amount of insolubles due to incomplete hydration, i.e., a smoother gel is produced. Further, more rapid and complete dissolution is observed when hard water is used in the make-up of the soluble alginate solution.
In the compositions of this invention, the preferred hydrocolloid is guar. Guar is a commercially available gum derived from the seed of the guar plant, Cyanaposis tetragonolobus. In addition to guar gum, other hydrocolloids usable in this invention include guar derivatives such as oxidized guar, carboxymethyl guar, de-polymerized guar, and hydroxyalkyl guar such as hydroxyethyl- and hydroxypropyl-guar, polyvinylalcohol, carboxymethyl cellulose (CMC), xanthan gum, cold water soluble locust bean gum, cold water soluble starch, and starch derivatives such as hydroxyethylated and hydroxypropylated starch.
The alginates to be used are the soluble salts of alginic acid. Alginic acid, derived primarily from kelp, is a commercially available product, as are the alginates. Especially preferred alginates are the sodium, potassium, and ammonium salts.
The di-valent salts which can be used in this invention are preferably those of calcium, barium, and strontium. The salts include a range of different solubilities from the least soluble like calcium citrate, tartrate, sulphate, and phosphate to the very soluble like calcium chloride. Thus, the salts include the acetate, bromide, carbonate, fluoride, fumarate, d-gluconate, glycerophosphate, hydroxide, iodide, lactate, di-malate, d-malate, maleate, malonate, nitrate, nitrite, oleate, primary-, secondary-, and tertiary-orthophosphate, proprionate, salicylate, and d-tartrate salts. However, the exact amount and type of each salt and hydrocolloid would depend on the level of ion control required by each application. The tri-valent salts, such as those of aluminium, may also be used.
The blends of the hydrocolloids and di-valent salts are prepared by dry mixing the two ingredients and then slowly adding water under agitation to form a paste or dough. If insufficient water is used (as evidenced by a lack of pasting), the hydrocolloid is not properly hydrated and an unacceptable product is produced. If an excess of water is used (such that the hydrocolloid is mostly dissolved) an acceptable product can be produced but the drying step becomes time-consuming and expensive. The ratio of di-valent salt to hydrocolloid ranges from 10:1 to 1:20 (based on total dry weights). Preferably the range is 5:1 to 1:5. Mixing of the dry ingredients and pasting are easily accomplished, e.g., in a Z-blade or paddle-type dough mixer, although other apparatuses are suitable. To assure proper mixing, the dry ingredients are mixed for about 5 minutes, the water is added for 5-10 minutes, and the paste is mixed for an additional 30 minutes. Following pasting, the dough is crumbled and dried to about 90% solids, e.g., 60°-70° C. in a tray drier. The dried product is milled and classified through 850 micron on 106 micron sieves. These blends therefore are not mere mixtures of hydrocolloid and salt. Rather, the salts are intimately blended with the hydrocolloid. Advantageously, this allows for the controlled release of the salt into solution as described above. Further dry mixtures of these blends with alginates are non-segregating, i.e., the distribution of divalent salt in the dry mixtures remains essentially unchanged over time. This assures the end user that there will be a homogeneous distribution of di-valent cations available for gelation when the gelled aqueous solutions are prepared. These hydrocolloid/di-valent salt blends are usable wherever it is desirable to controllably gel aqueous alginate solutions. Examples of such applications include gelled foods such as pet foods, sauces, gravies, bakery fillings, and structured foods such as structured pimento strips for olives. As stated above, there is a range of usable hydrocolloid:salt ratios. Likewise, there is a variety of specific salts, with varying solubility rates. The combination of these will determine the rate of viscosity build-up, which is dependent on the needs of the individual practitioner.
This blend is especially useful in alginate dye printing systems. The combination of algins and calcium salts has been disclosed in U.S. Pat. No. 4,222,740 as a means of forming dye resist areas on textiles. As taught therein, gelled regions are formed by separately applying a gelable (alginate) composition and a gelling (calcium) agent composition to a textile and then over-dyeing the material, the gelled regions serving as dye resist areas. U.K. No. 8300635 (DE No. 3300705 Al) teaches that when very low levels of a gelling agent are used to pretreat a substrate followed by printing with an alginate-containing print paste, the dye usage for equal color yield is reduced, accompanied by improved print definition.
The use of a mixed divvalent/monovalent (such as calcium/sodium) salt of alginic acid in the print paste effects a reduction in dye usage for equivalent color yield when compared to a print paste using sodium alginate or other conventional thickener. The reduction in dye usage is accomplished without the necessity of pretreating the substrate. Thus, the use of the mixed calcium/sodium alginate advantageously eliminates one of the process steps required by U.S. Pat. No. 4,222,740 and U.K. No. 8300635 while producing a savings in dye usage.
In a mixed alginate print paste as described above, the calcium (i.e., divalent ion) can conveniently be provided by the hydrocolloid/salt blends of this invention. This invention, therefore, comprises a mixture of blend of hydrocolloid and salt as hereinbefore described and a soluble alginate, said mixture being especially useful in print paste compositions.
The specific amount and type of alginate used in any particular application will, of course, be dependent on the other materials in the print paste, e.g., oxidizing agents, buffers, etc. These can be determined by the individual practitioner depending on his particular formulation. However, usage levels of the mixture of blend and alginate in the range 10 to 90% by weight are recommended; preferably 40 to 60%. The viscosity of the print pastes should be 5,000 to 30,000 cP (RVT or RVF, Brookfield Viscometer at 20 rpm, spindle 6, 20° C.) immediately before printing, preferably between 12,000-18,000 cP. Optionally, thickening agents such as guar, carboxymethyl guar, de-polymerized guar, locust bean gum, CMC, suitable synthetic polymers, cellulose derivatives such as sodium-carboxymethyl cellulose, and starch derivatives such as starch ether or combinations of said agents may be included to provide some of the viscosity and flow characteristics.
The di-valent ion level is defined as the amount theoretically necessary to convert 16-60% of the soluble alginate, preferably 25-50%, to the desired mixed alginate salt.
The print pastes of this invention are those prepared using pigments or dyes such as disperse dyes, reactive dyes, combinations of disperse and reactive dyes, and acid dyes, i.e., all anionic or non-ionic dyes but not cationic dyes. Reactive dyes are difficult to use because fixation, as with 1.5% sodium carbonate, is deleterious to the Ca++ /Na+ ratio in the alginate. For brevity's sake, as used herein, the term "dye" is intended to also include "pigment". The invention is most effective with disperse dyes. In addition to the alginate and dye, these print pastes comprise a variety of well known compounds such as buffers, oxidizing agents, etc. The preparation of such pastes is known in the art.
The substrates to be treated include, for example, polyesters, cellulosics, cottons, blends of these such as polyester/cottons, nylons, and polyamides. The substrates can be any material which can be printed with the appropriate dyes.
In the process of this invention the print paste composition can be applied by any conventional printing or dye method such as flat or rotary screen printing, block or raised relief printing, jet printing, stencil printing, engraved cylinder printing, Tak dying, Kuster dying, dip squeeze application, or hand application.
When a substrate is treated according to this invention, the print paste pick-up can be 25% less when compared to pastes using conventional thickeners. The dye actually consumed can be reduced by up to 15-25% typically but taking into account shade strength and different dye colors, the range of dye reductions falls within 5-40%.
Following application of the print paste the substrate is treated as necessary to fix any dyes, then washed, dried and otherwise treated by conventional methods to produce the desired end product.
The invention is further defined by reference to the following examples, which are intended to be illustrative and not limiting.
EXAMPLE 1 Hydrocolloid/Salt Blend (One-Step Process) 
______________________________________                                    
                         Wt. (kg)                                         
______________________________________                                    
Hydroxyethyl-guar gum (disperse dye printing grade)                       
                           250                                            
Tricalcium citrate.4H.sub.2 O (87% through 250 micron                     
                            90                                            
sieve 45% through 40 micron)                                              
Tap water                  308                                            
______________________________________
250 Kg guar and 90 kg calcium citrate were mixed in a paddle-type dough mixer for five minutes. 308 Kg water were added over 5-10 minutes and mixing continued for a further 30 minutes. The dough was discharged, disintegrated, and dried to approximately 90% dry matter, at 60°-70° C. in a tray drier. The product was milled and classified through 850 micron on 106 micron.
EXAMPLE 2 Hydrocolloid/Salt Blend (Two-Step Process) 
______________________________________                                    
                       Wt. (kg)                                           
______________________________________                                    
Hydroxyethyl guar (disperse dye printing grade)                           
                         250                                              
Tricalcium citrate.4H.sub.2 O (87% through 250 micron                     
                         67.3                                             
sieve 45% through 40 micron)                                              
Tap water                154                                              
______________________________________
125 Kg guar and 67.3 kg of calcium citrate were mixed in a paddle-type dough mixer for five minutes. 154 Kg water were added over 5-10 minutes and mixing continued for a further 30 minutes. The mixer was stopped and a further 125 kg guar added. Mixing resumed for 3-4 minutes. Then the dough was crumbled, dried, milled, and classified as in Example 1.
In the following examples, evaluation of the results was done by visual and instrumental observation of the completely processed substrate. Percentages are by weight unless otherwise stated.
Where fixation and washing is indicated in the examples, the following procedures were used:
The dye was fixed on the printed material by high temperature (H.T.) steam at 175° C. followed by: a wash procedure consisting of:
(i) Washing in running tap water;
(ii) Reduction-clear by treating ffabric 10-20 minutes at 50° C. in a solution containing 0.2% detergent+0.2% sodium hydroxide+0.2% sodium hydrosulphite;
(iii) Rinsing in tap water;
(iv) Reduction-clear as above;
(v) Rinsing in tap water;
(vi) Treating for 5-10 minutes at 70° C. in a solution containing 0.2% detergent;
(vii) Rinsing in tap water and drying.
EXAMPLE 3 Guar/Salt/Alginate Thickener
Polyester knitted fabric was printed with two print pastes constituted as follows:
______________________________________                                    
                Test    Conventional                                      
                Recipe (%)                                                
                        Recipe (%)                                        
______________________________________                                    
Palanil Brilliant Blue                                                    
                  4.0       4.8                                           
P-BGF liquid (non-ionic                                                   
disperse dye)                                                             
Monosodium orthophosphate                                                 
                  0.1       0.1                                           
Silcolapse 5006 (anti-                                                    
                  0.1       0.1                                           
foam agent based on                                                       
silicon fluid emulsion)                                                   
Prisulon SPE-K (thickener                                                 
                  --         3.75                                         
based on guar/starch                                                      
derivative)                                                               
Thickener         3.5       --                                            
Water             92.3      91.25                                         
                  100       100                                           
______________________________________
The dye was then fixed and washed.
The prints showed equal color intensity, although 20% less dye was used in the test recipe.
The thickener was prepared by dry mixing the following ingredients:
______________________________________                                    
                    Amt. (Wt. %)                                          
______________________________________                                    
Sodium alginate       34                                                  
(Manucol ®DH,                                                         
Kelco/AIL International Ltd.)                                             
Starch ether          38                                                  
(Solvitose C5,                                                            
Tunnel Avebe Starches Ltd.)                                               
Hydrocolloid/salt blend of Example 1                                      
                      28                                                  
______________________________________
The calcium content of the thickener was 5%, based on the amount of sodium alginate.
EXAMPLE 4 Guar/Salt/Alginate Thickener
Polyester knitted fabric was printed with two print pastes constituted as follows:
______________________________________                                    
                 Test    Conventional                                     
                 Recipe (%)                                               
                         Recipe (%)                                       
______________________________________                                    
Dispersol Rubine C-B liquid                                               
                   4.0       4.8                                          
(anionic disperse dye)                                                    
Monosodium orthophosphate                                                 
                   0.1       0.1                                          
Matexil PA-L (sodium                                                      
                   1.0       1.0                                          
m-nitrobenzene sulphonate)                                                
Manutex RS (high viscosity                                                
                   --         2.25                                        
sodium alginate with 0.6                                                  
percent Ca.sup.++  on alginate)                                           
Thickener          3.6       --                                           
Calgon (sodium-hexa-m-phosphate)                                          
                   --         0.55                                        
Water              91.3      91.3                                         
                   100       100                                          
______________________________________
The dye was then fixed and washed.
The prints showed equal color intensity although 20 percent less dye was used in the test recipe.
The thickener was the same as in Example 3.
EXAMPLE 5 Guar/Calcium Citrate/Alginate Thickener
Polyester knitted fabric was printed with two print pastes constituted as follows:
______________________________________                                    
                 Test    Conventional                                     
                 Recipe (%)                                               
                         Recipe (%)                                       
______________________________________                                    
Dispersol Rubine C-B liquid                                               
                   4.0       4.8                                          
(anionic disperse dye)                                                    
Monosodium orthophosphate                                                 
                   0.1       0.1                                          
Matexil PA-L (sodium                                                      
                   1.0       1.0                                          
m-nitrobenzene sulphonate)                                                
Manucol ®DH (medium viscosity                                         
                   --        3.2                                          
sodium alginate with 0.2%                                                 
CA.sup.++  on alginate)                                                   
Thickener          3.6       --                                           
Calgon (sodium hexa-m-phosphate)                                          
                   --        0.8                                          
Water              91.3      90.1                                         
                   100       100                                          
______________________________________
The dye was then fixed and washed.
The colour intensity on the prints corresponded to a dye saving of 20% when the test recipe was used. The amount of alginate (Manucol DH) in the test recipe was 1.2% vs. 3.2% in the conventional recipe.
The thickener was the same as in Example 3.
EXAMPLE 6 CMC/Salt/Alginate Thickener
Following the procedure of Example 1 but using carboxymethyl cellulose instead of guar, a blend was prepared which was then used to prepare a 34/38/28 thickener as in Example 3.
Polyester knitted fabric was printed with two print pastes constituted as follows:
______________________________________                                    
                Test    Conventional                                      
                Recipe (%)                                                
                        Recipe (%)                                        
______________________________________                                    
Palanil Brilliant Blue                                                    
                  4.0       4.6                                           
BGF liquid (anionic                                                       
disperse dye)                                                             
Monosodium orthophosphate                                                 
                  0.1       0.1                                           
Silcolapse 5006 (anti-                                                    
                  0.1       0.1                                           
foam agent based on                                                       
silicon fluid emulsion                                                    
Prisulon SPE-K (thickener                                                 
                  --         3.75                                         
based on guar/starch                                                      
derivatives)                                                              
Thickener         4.7       --                                            
Water             91.1      91.45                                         
                  100       100                                           
______________________________________
The dye was then fixed and washed.
The print showed equal colour intensity although 13% less dye was used in the test recipe.
EXAMPLE 7 Guar/Salt/Alginate Thickener
Polyester knitted fabric was printed with two print pastes constituted as follows:
______________________________________                                    
                Test    Conventional                                      
                Recipe (%)                                                
                        Recipe (%)                                        
______________________________________                                    
Palanil Brilliant Blue                                                    
                  3.6       4.8                                           
BGF liquid                                                                
Luprintan HDF,    1.5       1.5                                           
fixation accelerator (BASF)                                               
Monosodium orthophosphate                                                 
                  0.2       0.2                                           
Silcolapse 5006   0.1       0.1                                           
Prisulon SPE-K    --         3.75                                         
Thickener         2.7       --                                            
Water             91.9      89.65                                         
                  100       100                                           
______________________________________
The dye was then fixed and washed. The colour intensity on the print correspondend to a dye saving of 25%.
The thickener was prepared by dry mixing the following ingredients:
______________________________________                                    
                Amt. (Wt. %)                                              
______________________________________                                    
Sodium alginate   51                                                      
(Manucol ®DH)                                                         
Citric acid anhyd.                                                        
                   8                                                      
Hydrocolloid/salt blend                                                   
                  41                                                      
of Example 1                                                              
______________________________________
EXAMPLE 8 Guar/Salt/Alginate Thickener
Knitted polyester was printed with two print pastes constituted as follows:
______________________________________                                    
                 Test    Conventional                                     
                 Recipe (%)                                               
                         Recipe (%)                                       
______________________________________                                    
Palanil Dark Blue  4.2       6.0                                          
3 RT liquid                                                               
(anionic disperse dye)                                                    
Luprintan HDF (non-ionic fixation                                         
                   1.5       1.5                                          
accelerator based on fatty                                                
acid derivative)                                                          
Monosodium or orthophosphate                                              
                   0.2       0.2                                          
Silcolapse 5006    0.1       0.1                                          
Prisulon SPE-K     --         3.75                                        
Thickener          3.6       --                                           
Water              90.4      88.45                                        
                   100       100                                          
______________________________________
The dye was then fixed and washed.
The prints showed equal color intensity although 30% less dye was used in the test recipe.
The thickener was the same as in Example 3.
EXAMPLE 9 Solubility vs. Water Hardness
The following table demonstrates the improved solubility of alginates in hard water when mixed with the hydrocolloid/salt blends of this invention as compared to the solubility of alginates when merely mixed with the same salts. In the table the first two samples are dry blends of sodium alginate and calcium citrate (sufficient to give 45% calcium conversion). The viscosity readings are actual. The third sample was of the same composition as the thickener in Example 3. In the fourth sample, the thickener was of similar composition to that of Example 3 except that the hydrocolloid/salt blend was 74% xanthan gum and 26% calcium citrate.4H2 O. The viscosity readings shown for samples 3 and 4 were obtained from a plot of viscosity vs. water hardness.
              TABLE 9-1                                                   
______________________________________                                    
Viscosity vs. Water Hardness                                              
           RVT Brookfield Visc., cP, 20° C., 18 hr                 
      Algin      50 ppm       350 ppm                                     
Sample                                                                    
      Conc.sup.N (%)                                                      
                 CaCO.sub.3 Hardness                                      
                              CaCO.sub.3 Hardness                         
______________________________________                                    
1     1.71       42,800       24,400                                      
2     1.81       42,600       27,400                                      
3     1.75       38,500       70,300                                      
4     2.0        87,000       76,000                                      
______________________________________
EXAMPLE 10 Pet Food Formulation
A gelled pet food was prepared using as the thickener sodium alginate and a hydrocolloid/salt blend of this invention comprising guar and calcium sulfate. The composition of the pet food was:
______________________________________                                    
                    Wt. %                                                 
______________________________________                                    
Sodium alginate (Manugel ®GMB)                                        
                      5.0                                                 
Tetrasodium pyrophosphate                                                 
                      0.5                                                 
Water (DI)            249                                                 
Guar/CaSo.sub.4 Blend 12.5                                                
Chopped meat          250                                                 
______________________________________
Gel strength was measured for one hour and the following data obtained.
______________________________________                                    
Setting time (min.)                                                       
                Gel Strength (gms)*                                       
______________________________________                                    
 5              111                                                       
10              214                                                       
20              398                                                       
30              538                                                       
40              697                                                       
60              932                                                       
______________________________________                                    
 *Stevens  LFRA Texture Analyser, 1" (2.54 cm) plunger, 4 mm penetration.
EXAMPLE 11 Bakery Custard Formulations
A custard was prepared of the following compositions:
______________________________________                                    
                   Wt. (%)                                                
______________________________________                                    
Lacticol ®F 336 (dairy grade                                          
                     2.5                                                  
sodium alginate blend)                                                    
Guar/CaSO.sub.4 blend                                                     
                     1.0                                                  
Paselli BC, pre-gelatinized                                               
                     20                                                   
potato starch                                                             
Full cream milk powder                                                    
                     30                                                   
Caster sugar         50                                                   
Deionized water      250                                                  
______________________________________
The gel strength of the custard was 117 gm at 30 mins and 332 gm at 18 hr, measured on a Stevens LFRA Texture Analyser.
EXAMPLE 12 Viscosity vs. Water Hardness
Hydrocolloid/salt blends in the ratios 14.3:85.7 and 85.7:14.3 were prepared following the procedure of Example 1. These blends were mixed with sodium alginate to form thickeners, which were dissolved in water of varying hardness. The following solubility data were obtained:
              TABLE 12-1                                                  
______________________________________                                    
Viscosity vs. Water Hardness                                              
        Algin   Hydro./                                                   
Thickener                                                                 
        Conc    Salt     Viscosity* (cP) (1 hr/18 hr)                     
Conc (%)                                                                  
        (%)     Blend    50 ppm CaCO.sub.3                                
                                   350 ppm CaCO.sub.3                     
______________________________________                                    
5.78    2.0     14.3:85.7                                                 
                         37,400/75,700                                    
                                    30,300/67,600                         
5.78    2.0     85.7:14.3                                                 
                         63,400/66,800                                    
                                   115,800/105,400                        
______________________________________                                    
 *RVT Brookfield viscometer, 20° C.

Claims (4)

We claim:
1. Blend of ( 2) a hydrocolloid selected from the group consisting of guar, oxidized guar, carboxymethyl guar, hydroxyalkyl guar, polyvinyl alcohol, carboxymethyl cellulose, xanthan gum, cold water soluble locust bean gum, cold water soluble starch, hydroxyethylated starch, and hydroxypropylated starch and (2) a calcium, barium, or strontium salt wherein the ratio by weight of salt to hydrocolloid ranges from 10:1 to 1:20.
2. A blend of claim 1 wherein the hydrocolloid is guar, oxidized guar, carboxymethyl guar, hydroxyalkyl guar, carboxymethylcellulose, or xanthan gum, and the salt is a calcium salt.
3. A blend of claim 2 wherein the guar is hydroxyethyl guar and the salt is calcium citrate.
4. A blend of claim 1 prepared by a process which comprises mixing in water said hydrocolloid and said salt to form a paste, drying said paste to about 90% solids, and then milling said dried paste.
US06/770,114 1984-08-30 1985-08-27 Hydrocolloid blend for controlled release of calcium ions Expired - Lifetime US4693728A (en)

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US4786288A (en) * 1983-10-07 1988-11-22 Toray Industries Incorporated Fabric treating method to give sharp colored patterns
US4826504A (en) * 1983-10-17 1989-05-02 Kelco/Ail International Limited Calcium/sodium aliginate dye printing paste
US4859208A (en) * 1984-08-30 1989-08-22 Kelco International Limited Calcium control system: hydrocolloid and alginate for dye printing
US5079348A (en) * 1989-05-24 1992-01-07 Merck & Co., Inc. Film-forming size composition
US5153317A (en) * 1989-05-24 1992-10-06 Merck & Co., Inc. Composition and method for rheology controlled printing of fabric and carpet
US5389393A (en) * 1993-04-07 1995-02-14 Kraft General Foods, Inc. Quick-setting dessert gel mix
GB2312824A (en) * 1996-05-06 1997-11-12 Kraft Foods Inc Quick-setting gel mix
US5830240A (en) * 1996-10-23 1998-11-03 Solutia Inc. Fibers and textile materials having enhanced dyeability and finish compositions used thereon
US5944852A (en) * 1996-10-23 1999-08-31 Solutia Inc. Dyeing process
US5997937A (en) * 1996-05-06 1999-12-07 Kraft Foods, Inc. Quick-setting gel mix
US6280782B1 (en) 1999-11-08 2001-08-28 The Pillsbury Company Non-emulsion based, moisture containing fillings for dough products
US20040234598A1 (en) * 1993-09-09 2004-11-25 Penwest Pharmaceuticals Co. Sustained release heterodisperse hydrogel systems for insoluble drugs
US7070722B1 (en) * 1998-10-07 2006-07-04 Giltech Limited Foamable formulation and foam
US20070275862A1 (en) * 2006-05-19 2007-11-29 Mohand Melbouci Oxidized guar for oilfield servicing fluids
US20110151097A1 (en) * 2009-12-22 2011-06-23 Fmc Corporation Water-Dispersible Compositions for Food Applications
CN112969373A (en) * 2018-07-31 2021-06-15 尼科创业贸易有限公司 Aerosol-generating substrate

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US4842919A (en) * 1987-02-03 1989-06-27 Minnesota Mining And Manufacturing Company Pad forming method
US4868000A (en) * 1988-08-31 1989-09-19 Nestec S.A. Mousse product
US5112445A (en) * 1989-06-23 1992-05-12 Merck & Co., Inc. Gellan gum sizing
US5098635A (en) * 1989-11-09 1992-03-24 Copolymer Rubber & Chemical Corporation Process for manufacturing friable rubber bales
GB8926904D0 (en) * 1989-11-28 1990-01-17 Unilever Plc Thickening system
US5102446A (en) * 1990-02-01 1992-04-07 Aqualon Company No-till liquid herbicide and fertilizer suspension
US5055111A (en) * 1990-03-19 1991-10-08 Aqualon Company Oxidized polygalactomannan for improved textile washing of pad-dyed carpet
US5294455A (en) * 1991-04-08 1994-03-15 Petrella Limited Food product
JP4857421B2 (en) * 1999-12-08 2012-01-18 独立行政法人産業技術総合研究所 Biodegradable resin composition
EP1947959B1 (en) 2005-10-19 2017-09-20 Hill's Pet Nutrition, Inc. Process for preparing a food composition
WO2013055360A1 (en) 2011-10-14 2013-04-18 Hill's Pet Nutrition, Inc. Process for preparing a food composition
CN103924456B (en) * 2014-04-17 2016-04-06 苏州润弘贸易有限公司 A kind of production technology of reactive printing thickener

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GB752336A (en) * 1952-04-02 1956-07-11 Dick Co Ab Improvements in or relating to stencil duplicating inks
US3282717A (en) * 1963-04-23 1966-11-01 Kelco Co Print paste thickener
US3349079A (en) * 1964-04-06 1967-10-24 Kelco Co Gel forming alginate products and method of producing the same
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Cited By (21)

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Publication number Priority date Publication date Assignee Title
US4786288A (en) * 1983-10-07 1988-11-22 Toray Industries Incorporated Fabric treating method to give sharp colored patterns
US4826504A (en) * 1983-10-17 1989-05-02 Kelco/Ail International Limited Calcium/sodium aliginate dye printing paste
US4859208A (en) * 1984-08-30 1989-08-22 Kelco International Limited Calcium control system: hydrocolloid and alginate for dye printing
US5079348A (en) * 1989-05-24 1992-01-07 Merck & Co., Inc. Film-forming size composition
US5153317A (en) * 1989-05-24 1992-10-06 Merck & Co., Inc. Composition and method for rheology controlled printing of fabric and carpet
US5389393A (en) * 1993-04-07 1995-02-14 Kraft General Foods, Inc. Quick-setting dessert gel mix
US20060105035A1 (en) * 1993-09-09 2006-05-18 Penwest Pharmaceuticals Co. Sustained release heterodisperse hydrogel systems for insoluble drugs
US20040234598A1 (en) * 1993-09-09 2004-11-25 Penwest Pharmaceuticals Co. Sustained release heterodisperse hydrogel systems for insoluble drugs
GB2312824B (en) * 1996-05-06 2000-05-17 Kraft Foods Inc Quick-setting gel mix
US5997937A (en) * 1996-05-06 1999-12-07 Kraft Foods, Inc. Quick-setting gel mix
US6565901B1 (en) 1996-05-06 2003-05-20 Kraft Foods, Inc. Quick-setting gel mix
GB2312824A (en) * 1996-05-06 1997-11-12 Kraft Foods Inc Quick-setting gel mix
US5944852A (en) * 1996-10-23 1999-08-31 Solutia Inc. Dyeing process
US5830240A (en) * 1996-10-23 1998-11-03 Solutia Inc. Fibers and textile materials having enhanced dyeability and finish compositions used thereon
US7070722B1 (en) * 1998-10-07 2006-07-04 Giltech Limited Foamable formulation and foam
US6280782B1 (en) 1999-11-08 2001-08-28 The Pillsbury Company Non-emulsion based, moisture containing fillings for dough products
US20070275862A1 (en) * 2006-05-19 2007-11-29 Mohand Melbouci Oxidized guar for oilfield servicing fluids
US7851416B2 (en) * 2006-05-19 2010-12-14 Hercules Incorporated Oxidized guar for oilfield servicing fluids
US20110151097A1 (en) * 2009-12-22 2011-06-23 Fmc Corporation Water-Dispersible Compositions for Food Applications
US10694765B2 (en) * 2009-12-22 2020-06-30 DuPont Nutrition USA, Inc. Water-dispersible compositions for food applications
CN112969373A (en) * 2018-07-31 2021-06-15 尼科创业贸易有限公司 Aerosol-generating substrate

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